Merge PR #4433: Adopt YAML as human-readable text output

version/command.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
+	"gopkg.in/yaml.v2"
 
 	"github.com/tendermint/tendermint/libs/cli"
 )
@@ -28,16 +29,21 @@ var Cmd = &cobra.Command{
 			return nil
 		}
 
-		if viper.GetString(cli.OutputFlag) != "json" {
-			fmt.Println(verInfo)
-			return nil
+		var bz []byte
+		var err error
+
+		switch viper.GetString(cli.OutputFlag) {
+		case "json":
+			bz, err = json.Marshal(verInfo)
+		default:
+			bz, err = yaml.Marshal(&verInfo)
 		}
 
-		bz, err := json.Marshal(verInfo)
 		if err != nil {
 			return err
 		}
-		fmt.Println(string(bz))
-		return nil
+
+		_, err = fmt.Println(string(bz))
+		return err
 	},
 }